A dual-motor propulsion system and control method

A technology of a propulsion system and a control method, applied in the field of aircraft, can solve the problems of torque ripple, reduced system efficiency, difficult consistency, etc., and achieve the effect of high power-to-weight ratio and good fault tolerance performance.

Active Publication Date: 2022-06-28
航天科工智能机器人有限责任公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The existing electric propulsion schemes for high-altitude aircraft are mainly distributed brushless DC motor schemes with position sensors. Multiple electric motor devices are distributed on the wings or nose and tail. It also brings problems of reliability and power-to-weight ratio, and the square wave control method of brushless DC motors brings about the problems of reduced efficiency of the entire system and problems of torque ripple
In addition, the consistency of the double motors (also called dual motors, including the main motor and the slave motor, which can also be called the master motor and the slave motor) is also a difficulty in the existing technology. flow protection

Method used

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  • A dual-motor propulsion system and control method
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  • A dual-motor propulsion system and control method

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Embodiment Construction

[0056] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work are protected by the present invention. scope.

[0057] like figure 1 As shown, the dual-motor propulsion system includes a master motor, a slave motor, a master motor controller and a slave motor controller; the master motor and slave motor use independent stators and rotors, share the rotor housing and motor shaft, and the rotor housing is connected to the rotor through the hub mechanism. P...

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Abstract

The invention discloses a dual-motor propulsion system and a control method thereof. The method comprises: the main motor controller communicates with the outside to receive the speed command and feeds back the state information of the motor to the outside; the slave motor controller communicates with the outside to receive the speed command and The state information of the motor is fed back to the outside; the speed command includes a master speed command of the master motor and a slave speed command of the slave motor; the master motor controller and the slave motor controller communicate with each other to transfer data. The control method of the dual-motor propulsion system provided by the present invention can effectively control the output speed and torque of the dual-motor according to the speed command and propeller load balance. Based on the cooperative control and redundant design, the system has the characteristics of good fault-tolerant performance, and can be used when a partial failure occurs. Ensure that the entire motor system can continue to work.

Description

technical field [0001] The invention relates to the technical field of aircraft, in particular to a dual-motor propulsion system and a control method. Background technique [0002] The propulsion systems of electric aircraft, solar-powered UAVs, and stratospheric airships use electric motor devices to drive propellers to generate propulsion power. The propulsion system includes a motor unit and a propeller, and the motor unit consists of an electric motor and a motor controller, which is the core component of the propulsion system. Due to the limitation of battery energy density and the requirement of long-endurance flight, the electric motor device needs to have the technical characteristics of high power-to-weight ratio, high efficiency, high fault tolerance and good consistency of dual-motor synergy. [0003] The existing electric propulsion solutions for high-altitude aircraft are mainly distributed brushless DC motor solutions with position sensors. Multiple motor devi...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H02P21/22H02P21/13H02P21/24
CPCH02P21/22H02P21/13H02P21/24
Inventor张华王顺伟唐勇斌李志阔徐晓龙曹兴帅孟楠
Owner航天科工智能机器人有限责任公司